Japan Castle Atlas

Inaba Sadamichi

稲葉貞通

Son of the Mino warlord Inaba Ittetsu. He became lord of Gujo Hachiman in 1588 and remade it as a full mountain castle with high stone walls and a keep base.

Years: 1546–1603

Historical record

Story

He sided against the Tokugawa at Sekigahara and in 1600 fought Endo Yoshitaka and Kanamori Arishige for Hachiman Castle.

Connected castles

The keep framed by autumn leaves, November 2017. It is a wooden mock keep built in 1933, not a copy of an Edo-period keep.

In-depth article

Gujō, Gifu

Gujō Hachiman Castle

郡上八幡城

A wooden keep built in 1933, modeled on Ogaki Castle before the war destroyed it, still stands on the mountaintop.

Next 100 Fine Castles No. 152CastleMountain

KitimiCC BY-SA 4.0Wikimedia Commons

lord who built the stone walls and keep baseRecord source: article

In-depth article

Usuki, Oita

Usuki Castle

臼杵城

The Christian daimyo Otomo Sorin turned an entire rocky island in the sea into his castle; today only its sheer rock faces, rising from the middle of town, recall that it was once an island.

Next 100 Fine Castles No. 191CastleSea

Asturio CantabrioCC BY-SA 4.0Wikimedia Commons

first Inaba lord of Usuki, from 1600Record source: article

Basic information

Ōgaki, Gifu

Sone Castle

曽根城

CastleFlatland

shikabane taroCC BY 3.0Wikimedia Commons

LordRecord source: wikipedia

Sources

1
郡上八幡の歴史Checked: 2026-10-03
2
稲葉貞通(補助資料・Wikipedia日本語版)Checked: 2026-10-03
3
臼杵城跡(臼杵市観光協会)Checked: 2026-10-04
4
臼杵城(補助資料・Wikipedia日本語版)Checked: 2026-10-04